import java.util.*;
public class Test {
    public static void main1(String[] args) {
        Scanner sc = new Scanner(System.in);
        int m = sc.nextInt();//行
        int n = sc.nextInt();//列
        List<int[]> list = new LinkedList<>();
        int[] nums = new int[n];
        list.add(nums);

        while (nums[0] == nums[n - 1]) {
            int sum = 0;
            nums[0]++;
            for (int i = 1; i < n; i++) {
                nums[i] = 0;
            }
            list.add(nums);

            int j = 1;

            while (j < n && nums[j] < nums[j - 1]) {
                nums[j]++;
                list.add(nums);
                j++;

            }

            for(int i = 0; i < n; i++){
                sum += nums[i];
            }
            if (sum == m * n) {
                break;
            }
        }
        System.out.print(list.size());
    }

    public static int addAB(int A, int B) {
        return (A ^ B) ^ ((A & B)<<1);
    }

    public static void main(String[] args) {
        System.out.println(addAB(1,7));
    }

}
